* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #f3f5f7;
}

.clearfix:after {
  content: ".";
  display: block;
  visibility: hidden;
  height: 0;
  clear: both;
}

.clearfix {
  *zoom: 1;
}

/* 学成在线版心：1200px */
/* header栏 */
.w {
  width: 1200px;
  margin: auto;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
}

.header {
  height: 42px;
  margin: 30px auto;
}

.header .logo {
  float: left;
  width: 195px;
  height: 42px;
  background-image: url(images/学成在线.png);
}

.header .nav {
  float: left;
  height: 42px;
  margin-left: 60px;
}

.header .nav ul {
  overflow: hidden;
}

.nav ul li {
  float: left;
  margin: 0 15px;
}

.nav ul li a {
  display: block;
  height: 42px;
  padding: 0 10px;
  font-size: 18px;
  line-height: 42px;
  color: #050505;
}

.nav ul li a:hover {
  border-bottom: 2px solid #00a4ff;
  color: #00a4ff;
}

.search {
  float: left;
  width: 412px;
  height: 42px;
  margin-left: 50px;
}

.search input {
  float: left;
  width: 345px;
  height: 40px;
  border: 1px solid #00a4ff;
  border-right: none;
  font-size: 14px;
  color: #bfbfbf;
  padding-left: 15px;
}

.search button {
  float: left;
  width: 50px;
  height: 42px;
  border: 0;
  background-image: url(images/fa-search.png);
}

.user ul li a {
  float: right;
  height: 42px;
  line-height: 42px;
  margin-right: 30px;
  font-size: 14px;
  color: #7e7e7f;
}

.user ul li a img {
  vertical-align: middle;
}

.user ul li a:hover {
  color: #00a4ff;
}

/* header栏end */

/* banner栏 */

.banner {
  height: 420px;
  background-color: #1c036c;
  margin-bottom: 10px;
}

.banner .w {
  height: 420px;
  background: url(images/banner2.png) no-repeat top center;
}

.subnav {
  float: left;
  width: 190px;
  height: 420px;
  background-color: rgba(0, 0, 0, 0.3);
}

.subnav>ul {
  padding: 13px 0;
}

.subnav>ul>li {
  padding: 0 20px;
  height: 44px;
  line-height: 44px;
}

.subnav ul li a {
  display: block;
  font-size: 14px;
  color: #fff;
  padding-left: -20px;
}

.subnav>ul>.last {
  margin-bottom: 0;
}

.subnav ul li a span {
  float: right;
}

.subnav ul li a:hover {
  color: #00a4ff;
}

.course {
  float: right;
  width: 228px;
  height: 300px;
  margin-top: 50px;
  background-color: #ffffff;
}

.course h2 {
  height: 48px;
  background-color: #9bceea;
  text-align: center;
  line-height: 48px;
  color: #ffffff;
  font-size: 18px;
}

.course .bd {
  padding: 0 20px;
  color: #00a4ff;
}

.course .bd ul li {
  padding: 13px 0;
  border-bottom: 1px solid #bdbdbd;
}

.course .bd ul li>a {
  color: #4e4e4e;
  font-size: 16px;
}

.course .bd ul li a p {
  color: #bdbdbd;
  font-size: 12px;
}

.course .bd .more {
  display: block;
  height: 38px;
  border: 2px solid #00a4ff;
  margin: 5px;
  line-height: 38px;
  font-size: 16px;
  color: #00a4ff;
  text-align: center;
}

.course .bd ul li:hover {
  border-bottom: 3px dashed #00a4ff;
}

/* banner栏end */

/* 精品模块栏 */
.goods {
  height: 62px;
}

.goods .w {
  height: 62px;
  background-color: #ffffff;
  box-shadow: 0px 7px 15px 0px rgba(0, 0, 0, 0.15);
}

.goods h3 {
  float: left;
}

.goods h3 a {
  display: block;
  padding: 0 36px;
  height: 62px;
  text-align: center;
  line-height: 62px;
  font-size: 16px;
  color: #00a4ff;
}

.goods .goods-item {
  float: left;
}

.goods .goods-item ul li {
  float: left;
  /* padding: 0px 36px; */
  text-align: center;
  line-height: 62px;
  font-size: 16px;
  color: #050505;
}

.goods .goods-item ul li a {
  /* display: block; */
  padding: 0px 36px;
  border-left: 1px solid #bfbfbf;
}

.goods .goods-item ul li a:hover {
  text-decoration: underline;
  color: #00a4ff;
}

.goods .mod {
  float: right;
}

.goods .mod p a {
  display: block;
  padding-right: 26px;
  height: 62px;
  line-height: 62px;
  font-size: 14px;
  color: #00a4ff;
}

.goods .mod p a:hover {
  color: blue;
  text-decoration: underline;
}

/* 精品模块栏end */

/* box栏 */
.box {
  margin-top: 40px;
}

.box-hd {
  height: 45px;
}

.box-hd h3 {
  float: left;
  font-size: 20px;
  font-weight: 400;
  color: #494949;
}

.box-hd a {
  float: right;
  margin: 10px 30px 0 0;
  font-size: 12px;
  color: #a5a5a5;
}

.box-bd ul {
  width: 1225px;
}

.box-bd ul li {
  position: relative;
  float: left;
  width: 228px;
  height: 270px;
  margin: 0 15px 15px 0;
  background-color: #ffffff;
}

.box-bd ul li em .label {
  position: absolute;
  right: -4px;
  top: 5px;
}

.box-bd ul li:hover {
  box-shadow: 0px 5px 10px 5px rgb(0 0 0 / 25%);
}

.box-bd ul li>img {
  width: 100%;
}

.box-bd ul li h3 {
  margin: 20px 20px 20px 24px;
  font-weight: 400;
  font-size: 14px;
  color: #050505;
}

.box-bd ul li .info {
  bottom: 0px;
  right: 0px;
  margin: 0px 20px 0px 24px;
  font-size: 12px;
  color: #b8b8b8;
}

.box-bd ul li .info span {
  color: #ff7c2d;
}

/* box栏end */

/* program-box栏 */
.program-box {
  margin-top: 25px;
}

.program-box .program-hd {
  height: 45px;
}

.program-hd h3 {
  float: left;
  font-size: 20px;
  color: #494949;
  font-weight: 400;
}

.program-hd ul {
  margin-left: 300px;
  margin-top: 7px;
  float: left;
}

.program-hd ul li {
  margin: 0 40px;
  float: left;
}

.program-hd ul li a {
  color: #868686;
}


.program-hd>a {
  float: right;
  margin: 10px 30px 0 0;
  font-size: 12px;
  color: #a5a5a5;
}

.program-hd ul li a:hover {
  color: #00a4ff;
}

.program-bd {
  margin-top: 10px;
}

.left-banner img {
  float: left;
  width: 230px;
  height: 394px;
}

.top-banner img {
  float: left;
  width: 955px;
  margin-left: 15px;
}

.program-course {
  float: left;
}

.program-course ul {
  float: left;
  margin: 24px 0 0 0;
}

.program-course ul li {
  position: relative;
  float: left;
  width: 227.5px;
  height: 270px;
  margin-left: 15px;
  background-color: #ffffff;
}

.program-course ul li a {
  display: block;
  height: 100%;
}

.program-course ul li a:hover {
  box-shadow: 0px 5px 10px 5px rgb(0 0 0 / 25%);
}

.program-course ul li a img {
  width: 100%;
}

.program-course ul li a h4 {
  margin: 20px 20px 20px 24px;
  font-size: 14px;
  font-weight: 400;
  color: #050505;
}

.program-course ul li .info {
  position: absolute;
  bottom: 22px;
  left: 0px;
  margin: 0px 20px 0px 24px;
  font-size: 12px;
  color: #b8b8b8;
}

.program-course ul li .info span {
  color: #ff7c2d;
}

/* program-box栏end */

/* footer栏 */
.footer {
  height: 275px;
}

.footer .w {
  padding-top: 35px;
}

.copyright {
  float: left;
}

.copyright p {
  margin: 20px 0 15px;
  font-size: 12px;
  color: #666666;
}

.copyright .download-app {
  display: block;
  width: 120px;
  height: 36px;
  border: 1px solid #00a4ff;
  font-size: 16px;
  text-align: center;
  line-height: 36px;
  color: #00a4ff;
}

.links {
  float: right;
}

.links dl {
  float: left;
  margin: 0 30px 0 100px;
}

.links dl dt {
  margin-bottom: 5px;
  font-size: 16px;
  color: #333333;
}

.links dl dd a {
  font-size: 12px;
  color: #333333;
}

.links dl dd a:hover {
  color: #00a4ff;
  text-decoration: underline;
}

/* footer栏end */

/* 侧边导航栏start */
.side-nav {
  position: fixed;
  top: 30%;
  left: 50%;
  margin-left: 620px;
  font-size: 13px;
  color: #000000;
}

.side-nav .dj {
  position: relative;
  height: 124px;
}

.side-nav .dj .r_dj {
  position: absolute;
  top: 1px;
  left: -20px;
  width: 140px;
}

.side-nav .QRcode {
  display: none;
  position: absolute;
  top: -15px;
  left: -175px;
  height: 144px;
}

.side-nav:hover .QRcode {
  display: block;
}

.side-nav .QRcode .triangle {
  width: 0;
  height: 0;
  position: absolute;
  left: 143px;
  top: 53px;
  border: 10px solid transparent;
  border-left-color: #d18b3e;
}

.side-nav ul {
  background-color: #fff;
  padding: 20px;
  border-radius: 15px;
}

.side-nav ul li {
  display: block;
  height: 40px;
  line-height: 40px;
  border-bottom: 1px solid #b8b8b8;

}

.side-nav ul li a {
  color: #000000;
}

.side-nav ul li a:hover {
  color: #00a4ff;
}

/* 侧边导航栏end */
